Solution : https://service.sap.com/sap/support/notes/871486 (SAP Service marketplace login required)
Key words :
availability check/information, local atp check, attached program correction, atp error log, issues message crm_apo 203, sd_sales_item_type_av_prepare function module, program error, atp-relevant, crm system, system carries
Related Notes :
| 867822 | Local ATP check CRM -> R/3 returns error V1 320 |
| 813662 | Error message CRM_APO 203 for availability check with R/3 |