Hello Cheryl - In the payment receipt transaction, if the post button is not available to post the payment check the "Milestone" (button is available on the top right hand corner) to identify the next steps.

If it is Bank deposits and bank posting, create a remittance under A/P-A/R accounting, Remittances, Manual remittance entry and post it.

If you need further assistance please open a support ticket with your local support.

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