SOAP M Object Opportunities Not Accessible via REST API - Need Migration Guidance | Community
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Level 1
October 17, 2025
Question

SOAP M Object Opportunities Not Accessible via REST API - Need Migration Guidance

  • October 17, 2025
  • 1 reply
  • 343 views

We have opportunities created via SOAP `syncMObjects` API that are not accessible through the REST API. We need to understand the relationship between SOAP M Objects and REST objects, and how to properly migrate or access this data.
I see similar question without the answer https://nation.marketo.com/t5/product-discussions/issue-s-with-switching-from-soap-api-to-rest-api-for/m-p/201612#M146895.

 

**SOAP Opportunity Creation (Working):** { "opportunity": { "type": "Opportunity", "id": 18577, "externalKey": { "attrName": "opportunities.id", "attrValue": "8bb9da36-ab39-11f0-80e8-cefbdec3b66f" }, "attribList": { "attrib": [ {"name": "Name", "value": "NAme"}, {"name": "Amount", "value": "99"}, {"name": "Stage", "value": "In Progress"} ] } }, "action": "UPSERT" }

 

- `getMObjects` with ID 18577 successfully returns opportunity data

 

but all REST API attempts are failed.

Can anybody please help me with that?

1 reply

SanfordWhiteman
Level 10
October 17, 2025

It would be better if you posted the actual SOAP payload, not an intermediate JSON representation.