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I have rasterfiles and I'm using Extract Multi Values to Point but there are some parts of two layers aren't overlap. Normally, these points should get -999 or something like this? But my NoData points getting zero and this could be a major problem because I couldn't understand which one is real zero and which one is NoData.

How can I solve this?

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I figured it out. Somehow when you use Extract Multivalues to point these cells get zero but if you use extract values to points they will get -999.

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