You have a requirement to query "Business Partner Relationship data " from C4C system.
When you use the Standard OData URL, you are not able to see Business Partner Relationship data related to ABC Sales Organization.
Where ABC is a particular Country.
But data related to other Countries' Sales Organization are available.
Though, when you check in the system you can see that there are Business Partner Relationship data present for all the countries including ABC.
SAP Cloud for Customer
If you query the Business Partner Relationship data without a filter, the result will be truncated with the maximum number of rows, i.e., 1000.
If you want to find a specific Sales ID related to ABC, you have to apply the filter like this :
BusinessPartnerRelationshipCollection, Sales Organization , KBA , LOD-LE-BP-BP , Business Partner , Problem