Originally Posted by
phiota
They do not have anything to do with hyatt but they do have to deal with the topic on hand which is how to get Hyatt Diamond status by having a high status with certain hotel loyalty program (like hilton hhonor) and staying in one of their hotels previously.
Your previous post did not explain it that well, it came across that you wanted to credit points from non Hyatt properties to the Diamond challenge which won't work.
A per the reply after mine, if it is for the purpose of getting on the challenge, then any stay should be sufficient.
Details regarding this are very clear in the wiki at the top of each page