Field | Mandatory field | Character limit | Additional details | |
Block name | Yes | 100 | Characters <,>, ", ' , | |
Question field | no | 10000 | Rich text editor and media embedding (based on channel); Malicious scripts are sanitised. |
Field | Mandatory field | Character limit | Additional details |
Block name | Yes | 100 | <,>, ", ' , are not allowed |
Question field | No | 10000 | Styling and media based on channel; Malicious scripts are sanitised |
Image | No | Max size 14 MB | No specific validation mentioned |
Image label | No | 100 | <,>, ", ' , are not allowed |
Title | Yes | 200 | HTML tags aren't allowed |
Title label | No | 100 | <,>, ", ' , are not allowed |
Title value | Yes | 200 | HTML tags aren't allowed This field and card name must match |
Subtitle | No | - | No specific validation mentioned |
Subtitle value | Yes | 200 | HTML tags aren't allowed |
Subtitle label | No | 200 | <,>, ", ' , are not allowed |
Description | No | Input and storage N/A | No specific validation mentioned |
Description Label | No | 200 | <,>, ", ' , are not allowed |
| Description Value | Yes | 200 | HTML tags aren't allowed |
Button | No | 5 | - |
Button Label | No | 200 | <,>, ", ' , are not allowed |
Button Value | Yes | 200 | HTML tags aren't allowed |
Button Website Address | Yes | - | Must be a valid URL |
Text | No | Max 5 text items | - |
Text Label | Yes | 200 | <,>, ", ' , are not allowed |
Text Value | Yes | 200 | HTML tags aren't allowed |
Button block
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, ", ' , are not allowed |
Variable name | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Validation error message | No | 1000 | Malicious scripts are sanitised |
Button | Yes | Max count 75 | Count of buttons limited based on the channel where the flow is deployed |
Button name | Yes | 200 | Length limits vary by channel implementation |
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, ", ' , are not allowed |
Variable name | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Validation error message | No | 1000 | Malicious scripts are sanitised |
Field | Mandatory field | Character limit | Additional details |
Block name | Yes | 100 | <, >, ", ' , are not allowed |
Question field | Yes | 10000 | Styling and media supported based on channel; Malicious scripts are sanitised |
Image size | No | Image size 14 MB | - |
Image label | No | 100 | <, >, ", ' , are not allowed |
Image variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Title | Yes | - | - |
Title label | No | 100 | <, >, ", ' , are not allowed |
Title value | Yes | 200 | HTML tags not allowed |
Title variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Subtitle | No | - | - |
Subtitle label | No | 100 | <, >, ", ' , are not allowed |
Subtitle value | Yes | 200 | HTML tags aren't allowed |
Subtitle variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Description | No | - | - |
Description label | No | 100 | <, >, ", ' , are not allowed |
Description value | Yes | 200 | HTML tags are not allowed |
Description variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Button | No | - | 5 buttons are allowed |
Button label | No | 100 | <, >, ", ' , are not allowed |
Button value | Yes | 200 | HTML tags are not allowed |
Button website address | Yes | - | Valid URL check |
Button variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Text | No | Total count = 5 | |
Text label | No | 100 | <, >, ", ' , are not allowed |
Text value | Yes | 200 | HTML tags are not allowed |
Text variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Field | Mandatory field | Character limit | Additional details |
Block name | Yes | 100 | <, >, ", ' , are not allowed |
Image | No | - | - |
Image label | No | 250 | <, >, ", ' , are not allowed |
Image variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Title | Yes | - | - |
Title label | No | 100 | <, >, ", ' , are not allowed |
Title variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Subtitle | No | - | - |
Subtitle label | No | 100 | <, >, ", ' , are not allowed |
Subtitle variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Description | No | - | - |
Description label | No | 100 | <, >, ", ' , are not allowed |
Description variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Button | No | - | - |
Button label | No | 100 | <, >, ", ' , are not allowed |
Button variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Text | No | - | - |
Text label | No | 100 | <, >, ", ' , are not allowed |
Text variable | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Field | Mandatory field | Character limit | Additional details |
Block name | Yes | 100 | <, >, ", ' , are not allowed |
Variable name | Yes | 250 max, can input up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Validation error message | No | 1000 | Malicious attack scripts are checked and removed if present |
Expression | Yes | - | Must be a valid expression |
Field | Mandatory field | Character limit | Additional details |
Block name | Yes | 100 | <, >, ", ' , are not allowed |
Path | Yes | Count = 50 | |
Name | Yes | No max length is defined | Allowed characters: 0-9, a-z, A-Z, _ - ( ) . : ‘ ! / Space |
Criteria | Yes | Count = 5 | |
Right variable | Yes | 200 | Can be a string or number |
Else path | No | - | - |
Else Path Name | Yes (If 'Else path' is enabled) | No max length is defined | Allowed characters: 0-9, a-z, A-Z, _ ( ) , - . $ @ ? : ’ / ! Space Tab Newline |
Validation Error Message | No | 10000) | Malicious attack scripts are checked and removed if present |
Field | Mandatory field | Character limit | Additional details |
Block name | Yes | 100 | <, >, ", ' , are not allowed |
Output variable name | Yes | 250 | Special characters are not allowed except for underscore. Allowed characters: a-zA-Z0-9_@.{}(). |
Field | Mandatory field | Character limit | Additional details |
Block Name | Yes | 100 | <, >, ", ' , are not allowed |
URL | Yes | 9000 | Should be a valid URL |
| No | Max length = 1000 |
|
Status code | No | Response code should be between 100-999 | |
Validation error message | No | 10000 | Malicious attack scripts are checked and removed if present |
Field | Mandatory field | Character limit & Storage | Additional details |
Question field | No | 10000 | Styling and media based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | <, >, ", ' , are not allowed |
Variable name | Yes | Max 250, can input upto 260 | Only a-z, A-Z, 0-9, , @, ., {}, () allowed; no special characters except underscore (_) |
Validation error message | No | 1000 | Malicious scripts are sanitised |
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, " , ' , are not allowed |
Variable name | Yes | 250 Max, can type up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Validation error message | No | 1000 | Malicious scripts are sanitised |
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, " , ' , are not allowed |
Variable name | Yes | 250 Max, can type up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Validation error message | No | 1000 | Malicious scripts are sanitised |
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, " , ' , are not allowed |
Variable name | Yes | 250 Max, can type up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore (_) |
Validation error message | No | 1000 (Input), 10000 (Storage) | Malicious scripts are sanitised |
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, " , ' , are not allowed |
Variable name | Yes | 250 Max, can type up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore () |
Validation error message | No | 1000 | Malicious scripts are sanitised |
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, " , ' , are not allowed |
Variable name | Yes | 250 Max, can type up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore () |
Validation error message | No | 1000 | Malicious scripts are sanitised |
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, " , ' , are not allowed |
Variable name | Yes | 250 Max, can type up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore () |
Validation error message | No | 1000 | Malicious scripts are sanitised |
Field | Mandatory field | Character limit | Additional details |
Question field | No | 10000 | Styling and media embedding supported based on channel; Malicious scripts are sanitised |
Block name | Yes | 100 | < , >, " , ' , are not allowed |
Variable name | Yes | 250 Max, can type up to 260 | Cannot start with a number; Only a-z, A-Z, 0-9, , @, ., {}, () allowed; Special chars not allowed except underscore () |
Validation error message | No | 1000 | Malicious scripts are sanitised |
3. In the Create Flow form, enter Name and Description and choose Web, iOS or Android for the conversation flow and click Next.

4. Select Edit.
5. In the Edit Flow form, select Web, iOS or Android or both and Save.
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