ServiceNow Discovery, SCCM, & Data Precedence

[cloudyrobert]

I've implemented the SCCM integration in our development environment (com.snc.integration.sccm2016). My intention is for SCCM to serve as the authoritative source for the devices it covers, supplemented by ServiceNow Discovery where there is not a conflict with data from SCCM. It appears that ServiceNow Discovery & the SCCM integration are overwriting each other. I've set up a Data Precedence Rule for both SCCM (priority 100) and ServiceNow (priority 200) on the cmdb_ci_computer table, yet ServiceNow Discovery continues to overwrite certain fields (disk space and name in particular) and relationships (disks, file systems, serial numbers).

My understanding is that the precedence rule should keep Discovery from overwriting fields set by SCCM. I'm aware that the SCCM integration does not honor the rules (https://hi.service-now.com/kb_view.do?sysparm_article=KB0748948), but shouldn't Discovery?

My questions:

1. Why isn't Discovery honoring SCCM as a source with higher precedence and not overwriting values sourced from SCCM?
2. Are relationships included in the precedence rule on the table so that when I resolve question 1's issue, the relationships will also stop being overwritten?

[Patrick DeCarl1]

Can you share the steps you took? 

[cloudyrobert]

Not all of this is related, I don't think, but I believe this covers all that I've done...

1. Activated the plugin (com.snc.integration.sccm2016).
2. Configured the data sources for our environment.
3. Activated the AI jobs & deactivated the corresponding non-AI jobs for software.
4. Updated the computer identity data source SQL statement to pull TopConsoleUser
5. Updated the SCCM 2016 Computer Identity transform map
6. 1. Commented out the call to "setAssignedTo()" in the script
   2. Added a mapping for most recent discovery that sets the value to gs.nowDateTime()
   3. Added a mapping for discovery source that sets the value to "SCCM"
   4. Added a mapping for a custom "primary user" field set from the TopConsoleUser
7. Created two data precedence rules on cmdb_ci_computer from the CI Class Manager
8. 1. Priority 100
   2. 1. Data source: SCCM
      2. Applies to: Computer
      3. Active
   3. Priority 200
   4. 1. Data source: ServiceNow
      2. Applies to: Computer
      3. Active

[Patrick DeCarl1]

Check out another thread with issue.   https://community.servicenow.com/community?id=community_question&sys_id=c9985fb5db8b88d0d82ffb243996...

In Orlando release a new SCCM integration is setup to use IRE. link below. 

https://store.servicenow.com/sn_appstore_store.do#!/store/application/9a2ce8f60f80001067ae409dc4767e...

[CMDB Whisperer]

That link says the version was withdrawn from the store.

?!