Step 1: Login to woocommerce store and under dashboard click on woocommerce (refer image).

Step 2: Click on settings (refer image).
Step 3: Click on ADVANCED (refer image).
Step 4: Click on REST API (refer image).
Step 5: Click on Add Key (refer image).

Step 6: Create a new key named "eShipz" with read and write permissions, then click on "Generate Key." A new consumer key and consumer secret will be generated.
Step 7: Login to eShipz account.
Step 8: Navigate to settings and click on Saleschannel.
Step 9: Click on Woocommerce store.
Step 10: Copy and paste all the required details from woocommerce store: Store URL, Consumer secret, Consumer key, Status code and select the Woocommerce version as Wordpress(4.4 or later) Woocommerce(3.5.x or later).
Step 11: Click on save.
Woocommerce integration has been completed successfully.