SAP Knowledge Base Article - Public

2788683 - You see the error "SOAP:1.027 SRT: Serialization / Deserialization failed" in Web Service call. This is also reflected in Web Service Message Monitor.


You have a failing Web Service call though PDI logic and during debugging in the Cloud Application Studio you see the following error:


Further on you see the following error message in Web Service Message Monitor, while investigating the cause:

outgoing webservice.png


  • SAP Cloud for Customer.
  • SAP Cloud Application Studio.

Reproducing the Issue

As a prerequisite you have created the following:

  1. Custom solution in Cloud Application Studio.
  2. Custom Business Object .
  3. Custom Web Service.


The Error Text: "The value 0001-01-01T00:00:00+01:00 is not a valid date with time. It does not correspond to the XML format for ABAP" means that the DateTime parameter that you have provided in the Web Service request does not have the correct pattern.



The expected pattern by SAP for DateTime is yyyy-mm-ddThh:mm:ssZ. You need to adjust your Web Service request to this pattern.


SOAP, External, Pattern, DateTime, Date, Time, Request, Response, Administrator, Web Service Message Monitoring, Error, XML format for ABAP, not a valid date with time, parameter, Serialization, Deserialization, GET , KBA , AP-RC-BDS-WS , ByDesign Studio Web Services , Problem


SAP Cloud Applications Studio all versions ; SAP Cloud for Customer add-ins all versions