author	description	ms.author	ms.date	ms.topic	title	ms.reviewer	ms.custom
alwinv	Learn best practices for using circular codes to anchor a guide in Dynamics 365 Guides	alwinv	09/14/2023	conceptual	Best practices for circular code anchors	v-wendysmith	bap-template

Best practices for circular code anchors

Keep the following points in mind when you work with circular code anchors:

Material surface. Make sure to print the anchor on matte stock, and don't laminate it. Glossy materials can negatively affect scanning due to reflected light. Also, make sure that the anchor is flat. An anchor that is curved or distorted can affect alignment and detection.
Same anchor for authoring and printing. For best accuracy, use the same circular code anchor for authoring and operating.
Size. Make sure that your anchor is the exact size indicated in this article. Incorrect anchor size causes guide misalignment.
- Some applications and printers might change the size of the image.
- If the anchor is larger than indicated, HoloLens interprets the scale difference in distance. Therefore, the anchor is identified as closer than it really is.
- The best way to make sure that the anchor isn't resized is to print it from the PDF file.

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