# Recommendations

Cognex recommends the following guidelines when using the ID tool:

- Enable only those symbologies that can be present in the acquired image.
- Be aware that the Pharmacode symbology is not omnidirectional, so the orientation of the symbol will affect the decoded result.
- GS1 DataBar symbols should be aligned along the x-axis of the image for best performance.
- The ID Tool is more robust (higher yield or decode rate) when decoding Postal Codes in non-omnidirectional mode, which is appropriate for images where the postal code is nominally oriented horizontally to the region of interest. Cognex suggests using non-omnidirectional mode for production systems decoding postal symbols when the application contraints allow.