MS Dynamics NAV: Updating data #76
Description
When updating an object in MS Dynamics NAV you will receive an error message:
<m:message xml:lang="en-US">
Could not validate the client concurrency token required by the service. Please provide a valid token in the client request.
</m:message>
For every GET request the NAV server delivers an ETag:
- one ETag in the HTML-Header
- one ETag as an attribute in the XML node
<entry m:etag="W/"'28%3BEgAAAAJ7BTEAMAAwADAAMAAAAAAA8%3B826339620%3B'""> - another ETag as an Entity in the XML/JSON document
When updating an object, you have to deliver this ETag as an "If-Match" option in the HTML Header