DOC-794/idd-initiate-an-internal-direct-debit-transaction (#378)

Author: max-koro

docs/topics/merchants/online/idd/guide-initiate.mdx

@@ -18,7 +18,7 @@ title: Initiate a transaction
 1. Confirm you have a project access token or, if you're an account member, a user access token with `CanManageAccountMembership` permissions.
 1. Call the `initiateMerchantPaymentCollection` mutation.
 1. Include the amount `value` and `currency`.
-1. Choose `internalDirectDebit` (line 5), and add the payment mandate ID (line 6) from the [declare a payment mandate](./guide-declare.mdx) guide.
+1. Choose `internalDirectDebit` (line 5), and add the payment mandate ID (line 6) that was declared on the creditor's account using the [declare a payment mandate](./guide-declare.mdx) guide.
 1. Add validations and rejections that are helpful for you, as well as optional information such as a `reference` for your internal use.
 
 ## Mutation {#mutation}