Understanding Nominal Permutations and Nominal Codes
There are two setup areas for the Point of Sale Posting Tables, the Nominal Permutations, and Nominal Codes. The Nominal Permutations is where the Module, Franchises, Analysis Codes, Sales Type and Departments are set. The Nominal Codes are where the NL accounts are set against the Nominal Permutations.
Nominal Permutations
The below two screens show the Nominal Permutations for Parts and Labour. The two tabs, Parts Permutations and Labour Permutations are selected for the setup of Parts and Labour. The other two tabs are not used. Where values are separated by a space, this means each code is treated separately, ie "P L" means that Parts and Labour postings are separate. Where the values are joined, this means that posting is based off the first letter in the group, ie in the Analysis Code section, "ABDFG... "etc are joined, which means that any part with Analysis Code "ABDFG... "etc will post to the "A" Analysis Code.
Parts Permutations
Labour Permutations
Parts Permutation tab
Parts/Labour. Enter P and L separated by a space if Parts and Labour postings are separate
Franchise Codes. Enter all the valid Franchise Codes separated by a space for the stock carried in the Parts Department. The remaining letters in the alphabet should be grouped together at the end. This group usually starts with "Z". This ensures that any use of a non franchise letter other than "Z" will post to "Z".
Analysis Codes. These are the Analysis Codes as attached to each part. Usually all parts stock posts to the same analysis code. Extra Codes could exist for Freight and Tools etc.
Customer Codes. This is not used.
Sales Type. These are the codes from the Sales Ledger that represents Retail, Trade, Warranty and Internal and any other applicable Sales code.
Department Code. Enter "P" for the Parts Department plus and Service Departments
Labour Permutations tab
Parts/Labour. Enter L and P separated by a space if Labour and Parts postings are separate
Franchise Codes. Enter all the valid Franchise Codes separated by a space for the franchise vehicles worked on by the Service Department. The remaining letters in the alphabet should be grouped together at the end. This group usually starts with "Z". This ensures that any use of a non franchise letter other than "Z" will post to "Z".
Labour Type Codes. This is the first letter from the RATECODE in the Labour Rates file
Customer Codes. This is not used.
Sales Type. These are the codes from the Sales Ledger that represents Retail, Trade, Warranty and Internal and any other applicable Sales code.
Department Code. Usually "W" if for a single Service Workshop or any designated letter for multiple workshops. The Parts Department code is attached to one of the Service Departments.
Nominal Codes
This section is where the NL Account Codes are married up to the permutation.
The section highlighted below is a reflection of the settings in the Nominal Permutations screen.
The section highlighted below is also a reflection of the settings in the Nominal Permutations screen, except shown vertically. The first column aligns with Parts & Labour, the second, Franchise Code, the third Analysis Code, etc. There is one line for every possible permutation.
The first two lines (P and P A A) are for Balance Sheet Postings
followed by Profit & Loss postings.
To read the line 
it reads as Parts Sales for Franchise A with Analysis Code A for Sales Code A through Department P.
When setting these up, select the account that relates to the permutation.