No - once the link is presented to the end-user, the flow-builder or the Chat Flow application cannot cancel or 'call back' the payment link. If the end-user doesn't click the link within 5 minutes or doesn't complete their payment within 15 minutes, the payment link will expire. Once the link has expired, it cannot be reactivated and a new link must be sent to the end-user.

Yes. You can simply drag and drop the Chat 2 Pay node into each workflow where you need to trigger a payment link to be sent to your end-users. Each payment link that gets generated is unique and will link back to that particular payment for that particular flow. You also only need to configure your Chat 2 Pay settings on the Clickatell Portal once - the same configuration is used for all Chat 2 Pay nodes used in Chat Flow.

To stop using Chat 2 Pay in Chat Flow:

1. Remove the Chat 2 Pay node from the specific workflow where you no longer want to use it. Simply select the node and click the bin icon in the top right. Remember to rebuild the portion of the workflow where you've removed the Chat 2 Pay node, otherwise, when the end-user reached this point with no next step configured, the flow will just end unexpectedly and the end-user will receive an error message.

2. Depending on the scenario, you can delink the WhatsApp number from the particular flow completely. In Chat Flow, navigate to the Routing section and remove the relevant route. Remember that by doing this the end-users will receive no response if they attempt to contact your business on that number if the number is not linked to another workflow.

3. You can also disable Chat Flow from your Chat 2 Pay configuration in the Clickatell Portal. Note that this will remove Chat 2 Pay from Chat Flow completely, and you won't be able to use it in any of your workflows in Chat Flow.