SLP-MDG Integration: SRT: Serialization / Deserialization failed Element 'OrdinalNumberValue' missing" error

When creating a supplier using DRFOUT to SLP, why do I receive error:

SRT: Serialization / Deserialization failed Element 'OrdinalNumberValue' missing on the return Confirmation payload?

Out of the box configuration for SLP does not maintain support for suppliers which contain:

• Long-text
• Purchasing text
• Company code text
• Comments

The feature toggle SM-22911: Skip/add global2 namespace prefix adds the necessary support for these text fields. This can only be toggled on by logging a Case with Ariba.

If feature toggle SM-22911: Skip/add global2 namespace prefix is off, then "TextSAPScriptLine" tag will be added automatically in inbound request out payload.

Supplier Lifecycle & Performance > Supplier Lifecycle & Performance - XML-Integration