Limitations and best practices of chat widget and mobile SDK
This guide contains the character limits for Chat widget and Mobile SDK.
1. Quick Reply
The following are the character limits for Quick Reply (QR) options:
| Quick reply options | Character limit |
|---|---|
| Quick reply button | There is no character limit for QR buttons.  |
| Quick replies | There is no limit on the number of QRs in a single step. |
2. Text field
| Text field options | Character limit |
|---|---|
| Multi-line input | Limited to 1024 characters when multi-line input is enabled. Note: Multi-line input will be available by default for all bots in the future.  |
3. Cards/Carousels
| Cards/Carousels options | Character limit |
|---|---|
| Single card | There is no limit to the number of buttons in a single card. |
| Buttons | There is no limit on the number of characters in each button (both name and text).  |
| Title | There is no limit on characters in the title.  |
| Carousel card | In Builder, there is a limit of 10 cards in a single carousel (there is no limit when these are generated via API). The recommended dimensions for carousel images: Width - 248px and Height - 164.2px. |
| Description | There is no limit on characters in the description.  |
4. Multi select
| Multi select | Character limit |
|---|---|
| Options | There is no limit on the number of options in multi-select.  |
| Characters | There is no limit on the number of characters used in each option.  |
- File upload: The maximum file size is 20 MB.
