User linkages with a userId of 2570, 22244, 32000, 32001, or 39030 (Extended entity data linkage)

In V7 these linkages are supported like any other user linkages, but in V8 FME stores them as a blob and that gets carried over to V8 as a blob.

Note that in order to get Extended Entity Data linkages to carry over correctly, the original file containing these linkages should be picked as the seed file. The support for these linkages would work for V8 to V8 only. Any attempt to transfer them from V7 to V8 (or vice versa) will not work. In V8, they store linkage attributes as follows:

Linkage Parameter	Contents
userId	The user -ID of the linkage. This value would be any of 2570, 22244, 32000, 32001, or 39030. Default: No default
blob	This stores the linkage as binary data. Default: No default
blobsize	Stores the size of the blob. Range: 0..256 Default: No default
flags	Flags for the user linkage. Range: 0..256 Default: No default
type	Type of linkage. Default: user