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Introduction to invoicing

Here you will find basic settings for you to start using Invoicing module.

General settings

The very first set up to be performed is in Invoicing Settings General. There are items here that have impact on basic behaviour of the module. The most important items are:

cena_dph_typ

Setting of price type used in the ISPadmin system:

0 - Prices entered = prices excluding VAT. Prices incl. VAT are calculated based on the specified VAT rate.
1 - Prices entered = prices including VAT. Prices excl. VAT are calculated based on the specified VAT rate.

See the examples below.

dph VAT rate
dph_low Reduced VAT rate
export Select software used for importing invoices.
pozastavit_neplatice Option to suspend a client:
0 - off
1 - If invoice meets suspension parameters client will be suspended
pozastavit_neplatice_min_castka Minimum amount for a client ‘s debt before suspension.
pozastavit_po_splatnosti Number of days after invoice due date before client gets suspended.
price_rounding Invoice rounding
splatnost_faktur Invoice due date according to a specified number of days
vs_ss_exchange 0 - Client number is stated on the invoice as a specific symbol and invoice number as a variable symbol.
1 - Client number is on the invoice stated as a variable symbol and invoice number as a specific symbol.

Calculation example following settings in cena_dph_typ:

cena_dph_typ = 1

 Price incl. VAT = 11.85 - entered in ISPadmin

Rate = 20% - entered in ISPadmin
VAT = Price incl. VAT x coefficient
Coefficient = [rate/(100 + rate)]
VAT = 11.85 * [20/(100+20)]
VAT = 11.85 * 0,1666666667
VAT = 1.975
Rounded VAT = 1.98
Price excl. VAT = Price incl. VAT - VAT
Price excl. VAT = 11.85 - 1.98
Price excl. VAT = 9.87

cena_dph_typ = 0

Price excl. VAT = 11.85 - entered in ISPadmin
Rate = 20% - entered in ISPadmin
Coefficient = [(100 + rate)/100]
Price incl. VAT = Price excl. VAT x coefficient
Price incl. VAT = 11.85 * 1.2
Total incl. VAT = 14.22
VAT = Price incl. VAT - Price excl. VAT
VAT = 14.22 - 11.85
VAT = 2.37

Create Invoice group

Invoicing Settings Invoice group

Each client belongs to a certain invoice group which represents provider´s company. If you are one company, one invoice group is sufficient. Some ISP´s compose of more companies, hence more invoice groups for each company. Each invoice group has its own logo and stamp for invoices. Also, all data such as numerical series, invoicing, statistics or clients are kept separately. Each invoice group must have its own numerical series.

Bulk Generation of Invoices

You can issue invoices in bulk by invoice groups in Invoicing Invoices Invoices.


If you are a beginner, please bear in mind not to use test invoices in real world - do not send them to client emails! As soon as you’re done with testing you can contact your technical support that will remove all test invoices from your system. This way you will always have your invoicing module ready for real invoicing.

icon info2 Useful

Creation of standalone invoice

Proforma invoices

Creating a standalone invoice

Read more ... (index.php?option=com_content&view=article&id=1159&...

Removing records from ISPadmin

Delete client Deleted client is not deleted from the system, instead its rec...

Add new / Edit existing Service

If you have added a new client, it just a contact which is not linked to any ac...

System Variables

Read more ... (index.php?option=com_content&view=article&id=1380&...

Accepting Cash Payment

overpayments (index.php?option=com_content view=article id=1088:overpaymen...

Edit invoice

Modify an invoice changing the following: Title Item description ...

No permission for adding overpayment into client´s credit

If you are trying to add overpayment, and see Permission denied message you h...

Limited data consumed / Traffic graphs are high

If you experience one/both of the following problems Limited data gets consum...

Suspension of service

The function of suspending a client serves to temporarily block the service with...

Creation of client number

While adding a new contact to the system, you will be offered first unused clien...

Return of overpayment

Bulk order (index.php?option=com_content view=article id=628:returned catid=488:...

How to display client portal login credentials on an invoice

In Invoicing Settings Invoice Groups, while adding a new group (+ Add new group)...

Add New Contact

a requested service in Client card (index.php?option=com_content view=article...

Send invoices by email

Invoices get sent in PDF automatically upon their issuing. Sending via both, reg...

Entering an address

You have the following options to enter address: Fill in respective fields: S...

PING to client does not work

PING to client function is off by default. It is to reduce network load which in...

More than 1 item in email or phone number fields

You will be able to add more items in every field in the system designed for ema...

Charging clients for tariff changes

You might want to charge clients, for example, when they decide to change to ...

One-time invoice for a service provided in a certain time period

If you want to issue a one-time invoice for a certain service that is provide...

How to send a client an email containing all of their unpaid invoices

If you want to send a particular client an email containing all of their unpaid ...

How to give a discount

Options for discount of regular service rate are as follows: Tariff rate dis...

How to assign an IP address pool to a client

When editing/adding the Internet service (index.php?option=com_content view=arti...

VAT missing on a cash receipt

If the client pays for the invoice in cash, VAT tax is not stated on the cash re...

How to issue an expenditure cash slip

The system issues an expenditure cash slip when overpayments are refunded in ...

Use of IP address

To find out, which client used a certain IP address in specified time, go to ...

Lookup by phone number

You can use http://ISPadmindomain.com/new/www/find-client-by-phone-number/?numbe...

Filtering clients base on their invoicing

Invoicing is related to services, not clients. A client can have e.g. 2 active s...

How to add a NAT IP address

A NAT IP address can be added in the Client card. When you are editing the In...

How to add supplementary information to contact emails and phone numbers

If you need to add supplementary information to a client's email address and ...

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If you want to increase a client’s Internet speed in off-peak hours...

Displaced invoice margin

If invoice margins are printed incorrectly you have to check print settings of P...

Is it possible to set a specific speed for IPTV service?

No, it is not possible. You cannot set up special speed profiles for the IPTV...

Is it possible to export/print out all the contracts of a client at once?

No, it is not possible. Each contract is unique. It is a single file and it i...

Suspension of the internet service at the client's request

If your client contacts you and wants you to temporarily suspend the Internet...

Is it possible to set an installation fee discount anywhere in the system?

No, it is not. You cannot enter such a discount to the system at the moment. ...

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