@Belinda_Please validate if your GET/PUT services are working fine using Test Model Object.Please refer to the video at [1] .[1]. https://helpx.adobe.com/experience-manager/kt/forms/using/Integrate-AEM-Forms-With-Dynamics-365.html

@clintalba There is a similar thread on this, you can refer at [1]If you have any other related query, please share your form. [1].https://experienceleaguecommunities.adobe.com/t5/adobe-livecycle-discussions/how-to-calculate-the-number-of-row-in-a-dynamic-table/td-p/93951